Read the entire paper, not the summary. There are some interesting points there. One is that NSA does not have a shortage of cybersecurity experts. That's because they train them. It takes three years of full-time training. The agencies that complain that they can't find anybody aren't investing in their people in the way that NSA does. Other agencies don't invest in their people like that.
I think that's really an unfair comparison. Do other agencies have the insane funding that NSA has? The lack of accountability (and by that I mean they don't have to justify their spend as much). Also, as the article noted, the NSA is except from these pay scales.
This is typical of employer whining about not being able to get the people they want. Sure, the companies who want people with some very specific skill set, right now, often at low pay, can't find them. Organizations that are willing to train people don't have those problems.
And this goes to show that you missed the points of the report. Most federal agencies are forbidden from paying decent wages because they have to use the pay scales that the government sets.
If you want to make the point that the government pays shit, then you should phrase that differently...